OPTYMA
TM
Control single-phase AK-RC 101
RS8FD402
©
Danfoss A/S 2014/11
11
Level 2 - Programming (Installer Level)
To access the second programming level press the
UP (
▲
) and DOWN (
▼
) keys and the LIGHT key
simultaneously for a few seconds.
When the first programming variable appears the
system automatically goes to stand-by.
1. Select the variable to be modified by pressing the
UP (
▲
) and DOWN (
▼
) keys.
When the parameter has been selected it is
possible to:
2. View the setting by pressing the SET key.
3. Modify the setting by holding the SET key down
and pressing the (
▲
) or (
▼
) key.
4. When configuration settings have been
completed you can exit the menu by pressing the
(
▲
) and (
▼
) keys simultaneously and keep them
pressed until the room temperature reappears.
5. Changes are saved automatically when you exit
the configuration menu.
6. Press the STAND-BY key to enable electronic
control.
List of Level 2 variables (Installer Level)
Variables Explanation
Value
Default
AC
Door switch status
0 = normally open
1 = normally closed
0
F3
Fan status with compressor off
0 = fans run continuously
1 = fans only run when
compressor is working
1
F4
Fan pause during defrost
0 = fans run during defrost
1 = fans do not run during defrost
1
dE
Sensor presence
If the evaporator sensor is disabled defrosts are
carried out cyclically with period d0: defrosting
ends when an external device trips and closes the
remote defrost contact or when time d3 expires.
0 = evaporator sensor present
1 = no evaporator sensor
0
d1
Defrost type
, cycle inversion (hot gas) or with
heater elements
1 = hot gas
0 = electric
0
bdr
Modbus baudrate
(Danfoss System unit =19200 baud)
0=300. 1=600. 2=1200. 3=2400.
4=4800. 5=9600. 6=14400.
7=19200
. 8=38400 baud.
7
Ad
Modbus address
1 ... 247
(+ setting: AU must be set to 7)
(+ move jumper: see page 14)
0
Ald
Minimum and maximum temperature
Signalling and alarm display delay
1…240 min
120 min
C1
Minimum time between shutdown and
subsequent switching on of the compressor
.
0…15 min
0 min
CAL
Correction of sensor signal
-10…+10
0
Pc
Compressor protection contact status
0 = NO
1 = NC
0 = NO
doC
Compressor safety time for door switch
: when
the door is opened the evaporator fans shut down
and the compressor will continue working for time
doC, after which it will shut down.
0…5 minutes
0
tdo
Restart time, if the door remains open
0... 240 min. (0=no function)
0
Fst
FAN shutdown TEMPERATURE
The fans will stop if the temperature value read by
the evaporator sensor exceeds this value.
-45…+45°C
+45°C